CN116694007A - Perfluoro ether rubber material bonded with metal - Google Patents
Perfluoro ether rubber material bonded with metal Download PDFInfo
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- CN116694007A CN116694007A CN202310748630.6A CN202310748630A CN116694007A CN 116694007 A CN116694007 A CN 116694007A CN 202310748630 A CN202310748630 A CN 202310748630A CN 116694007 A CN116694007 A CN 116694007A
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- rubber
- parts
- perfluoroether
- metal
- carbon black
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 137
- 229920001774 Perfluoroether Polymers 0.000 title claims abstract description 110
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000000463 material Substances 0.000 title claims abstract description 63
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 239000006229 carbon black Substances 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 18
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical group CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims abstract description 14
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 32
- 238000004073 vulcanization Methods 0.000 claims description 26
- 238000000748 compression moulding Methods 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 150000002170 ethers Chemical class 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000007723 die pressing method Methods 0.000 claims description 2
- 238000005502 peroxidation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 239000000839 emulsion Substances 0.000 description 4
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 poly (perfluoroethylene-propylene) Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical compound FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- XIUFWXXRTPHHDQ-UHFFFAOYSA-N prop-1-ene;1,1,2,2-tetrafluoroethene Chemical group CC=C.FC(F)=C(F)F XIUFWXXRTPHHDQ-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a perfluoro ether rubber material bonded with metal, which relates to the technical field of perfluoro ether rubber, and comprises raw perfluoro ether rubber, N990 carbon black, white carbon black, a silane coupling agent, a cross-linking agent, TAIC (total internal heat transfer) and a vulcanizing agent, wherein the silane coupling agent is vinyl triethoxysilane or vinyl trimethoxysilane, and the silane coupling agent and the white carbon black are combined and dispersed in the perfluoro ether rubber to modify the perfluoro ether rubber and enhance the bonding force of the surface of the perfluoro ether rubber and the metal. According to the perfluoro ether rubber material, the white carbon black and the silane coupling agent are added into the perfluoro ether rubber material, the adhesive force of the perfluoro ether rubber is enhanced under the reaction action of the silane coupling agent and TAIC, the silane coupling agent and the white carbon black generate chemical bonding force and react with active groups on the metal surface to form chemical bonding or hydrogen bonds, and the sealing component prepared from the material can be bonded with the metal material without using glue, so that the sealing effect is good.
Description
Technical Field
The invention relates to the technical field of perfluoroether rubber, in particular to a perfluoroether rubber material bonded with metal.
Background
The perfluoro ether rubber refers to a terpolymer of perfluoro ether, tetrafluoroethylene and perfluoro vinyl ether, and the perfluoro ether rubber can be used for preparing sealing parts.
In the prior art, the application number is as follows: 2020108827126 is disclosed by the name: the rubber material comprises perfluoro ether fluororubber and poly (perfluoroethylene-propylene) resin in the mass ratio of (85-95): (5-15), the preparation method of the rubber material comprises the following steps: and mixing the perfluoroether fluororubber emulsion and the perfluoroethylene propylene resin emulsion to obtain an emulsion containing a raw material mixture, and condensing, washing and drying the emulsion containing the raw material mixture to obtain the rubber material.
However, in the prior art, the application number is as follows: 2020108827126, the perfluoroether material has a stable molecular structure, is difficult to adhere to metal, so that the prepared sealing part cannot be well attached to the metal when in use, is easy to fall off when in installation, and has poor sealing effect.
Disclosure of Invention
The invention aims to provide a perfluoro ether rubber material bonded with metal so as to solve the problems in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the raw materials of the perfluoroether rubber material comprise perfluoroether rubber raw rubber, N990 carbon black, white carbon black, a silane coupling agent, a cross-linking agent, TAIC and a vulcanizing agent.
The silane coupling agent is vinyl triethoxysilane or vinyl trimethoxysilane, and is combined with white carbon black and dispersed in the perfluoroether rubber to modify the perfluoroether rubber, so as to enhance the bonding force between the surface of the perfluoroether rubber and metal bonding.
Preferably, the raw material proportion of the perfluoroether rubber material comprises: 100 parts of perfluoroether rubber raw rubber, 15 parts of N990 carbon black, 12 parts of white carbon black, 2-6 parts of vinyl triethoxysilane or 5 parts of vinyl trimethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent.
Wherein: the crosslinker was Perkadox1440B GR.
Preferably, the preparation method is as follows:
s1, raw material proportion
Taking out the raw materials according to the proportion of the formula;
s2, presulfiding the perfluoroether rubber raw rubber;
s3, performing secondary vulcanization on the presulfided perfluoroether rubber;
s4, banburying
Pouring the perfluorinated ether rubber after secondary vulcanization and the residual raw materials into an internal mixer, and banburying the mixed materials to obtain a mixed material II;
and S5, compression molding and sheet discharging.
Preferably, the S2 specifically includes: taking 100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent, putting into vulcanizing equipment, and vulcanizing for 10min at 160 ℃ to obtain a pre-vulcanized raw material.
Preferably, the step S3 specifically includes: heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization on the presulfided perfluoroether rubber for 4 hours to obtain the perfluoroether rubber subjected to peroxidation vulcanization.
Preferably, the temperature in the internal mixer in the step S4 is 100 ℃, and the internal mixing time is 10min.
Preferably, the step S5 specifically includes: and (3) cooling the mixed material II for 4min, and performing die pressing to form a sheet at 80 ℃ to obtain the perfluoroether rubber sheet.
Preferably, the step S5 further comprises connecting the perfluoroether rubber sheet with the metal stainless steel 316L by using a Chemlok607, and detecting the 90-degree peel strength of the perfluoroether rubber sheet by the test piece.
The invention has the beneficial effects that:
1. according to the perfluoro ether rubber material, the white carbon black and the silane coupling agent are added into the perfluoro ether rubber material, so that the adhesive force of the perfluoro ether rubber is enhanced under the reaction of the silane coupling agent and TAIC, and the silane coupling agent and the white carbon black react to generate chemical bonding force and react with active groups on the surface of metal to form chemical bonding or hydrogen bonds, so that the strength of bonding with the metal is further improved;
2. the perfluoro ether rubber material provided by the invention has the advantages that the preparation method is simple, the modification treatment of the perfluoro ether rubber material can be realized, and the perfluoro ether rubber can be bonded with a metal material without using glue, so that the sealing part prepared from the material can be well bonded at the joint of the metal part, and the sealing effect is good.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A perfluoro ether rubber material bonded with metal comprises the following components in percentage by weight: 100 parts of perfluoroether rubber raw rubber, 15 parts of N990 carbon black, 12 parts of white carbon black, 2-6 parts of vinyl triethoxysilane or 5 parts of vinyl trimethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent.
Wherein: the cross-linking agent is Perkadox1440B GR, TAIC is triallyl isocyanurate, and the white carbon black is white carbon black VN3.
Example 1
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoroether rubber raw rubber, 12 parts of white carbon black, 2 parts of vinyl triethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 12 parts of white carbon black, 2 parts of vinyl triethoxysilane, 5 parts of a cross-linking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
The prepared perfluoroether rubber sheet was joined to metal stainless steel 316L according to ISO 813:1997 using Chemlok607 glue at the joint, and the test piece was tested to give a 90 degree peel strength of 0.3N/mm.
Example 2
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoroether rubber raw rubber, 12 parts of white carbon black, 5 parts of vinyl triethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 12 parts of white carbon black, 5 parts of vinyl triethoxysilane, 5 parts of a cross-linking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
The prepared perfluoroether rubber sheet was joined to metal stainless steel 316L according to ISO 813:1997 using Chemlok607 glue at the joint, and the test piece was tested to give a 90 degree peel strength of 1.03N/mm.
Example 3
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoroether rubber raw rubber, 12 parts of white carbon black, 6 parts of vinyl triethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 12 parts of white carbon black, 6 parts of vinyl triethoxysilane, 5 parts of a cross-linking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
The prepared perfluoroether rubber sheet was joined to metal stainless steel 316L according to ISO 813:1997 using Chemlok607 glue at the joint, and the test piece was tested to give a 90 degree peel strength of 1.15N/mm.
Example 4
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoroether rubber raw rubber, 12 parts of white carbon black, 5 parts of vinyl trimethoxy silane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 12 parts of white carbon black, 5 parts of vinyl trimethoxy silane, 5 parts of a cross-linking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
The prepared perfluoroether rubber sheet was joined to metal stainless steel 316L according to ISO 813:1997 using Chemlok607 glue at the joint, and the test piece was tested to have a 90 degree peel strength of 2.08N/mm.
Example 5
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoroether rubber raw rubber, 12 parts of white carbon black, 6 parts of vinyl triethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 12 parts of white carbon black, 6 parts of vinyl triethoxysilane, 5 parts of a cross-linking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
The prepared perfluoroether rubber sheet was joined to metal stainless steel 316L according to ISO 813:1997 without using Chemlok607 glue at the joint, and the test piece was subjected to test to give a 90 degree peel strength of 0.7N/mm.
Reference example
The preparation method of the perfluoroether rubber material comprises the following steps:
s1, raw material proportion
According to the proportion of the formula, 100 parts of perfluoro ether rubber raw rubber, 15 parts of N990 carbon black, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent are taken.
S2, prevulcanization
100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent are put into vulcanizing equipment, the temperature of 160 ℃ is kept in the vulcanizing equipment, and the vulcanizing treatment is carried out for 10 minutes, so as to obtain a pre-vulcanized raw material.
S3, secondary vulcanization
And heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization treatment on the pre-vulcanized raw material for 4 hours to obtain the peroxide-vulcanized perfluoroether rubber.
S4, banburying
And pouring the perfluorinated ether rubber and the additive subjected to secondary vulcanization into an internal mixer, keeping the temperature of 100 ℃ in the internal mixer, and banburying the mixed material for 10min to obtain a mixed material II.
The additive comprises: 15 parts of N990 carbon black, 5 parts of a crosslinking agent and 2 parts of TAIC.
S5, compression molding
And cooling the mixed material II after banburying for 4min, performing compression molding at 80 ℃, and then discharging the sheet to obtain the perfluoroether rubber sheet.
According to the ISO 813:1997 method, the prepared perfluoroether rubber sheet was connected with metal stainless steel 316L, and when the connection was tested by using Chemlok607 glue, the perfluoroether rubber sheet was found to be not bonded with metal stainless steel 316L.
As the molecule of the perfluoro ether material is very stable, no reactive group is combined with the surface of the metal or the glue, and the bonding point is difficult to react, so that no bonding effect exists, and the glue remains on the surface of the metal.
In summary, the peel force results of the examples are shown in the following table:
the invention adopts a filler system of white carbon black and a silane coupling agent to improve the perfluoroether rubber, so as to enhance the surface adhesive force of the perfluoroether rubber, and the perfluoroether rubber sheet still has certain adhesive force under the condition of not using glue.
The amount of silane coupling agent used is not less than 5phr, generally 5phr is selected. Because the binding force is weak when the silane content is low.
The silane coupling agent has vinyl group which can react with TAIC in the presence of peroxide to generate chemical combination, and can be one of methoxyl silane and ethoxyl silane, and methoxy or ethoxyl group can react with micro-chemical active groups on the surface of metal, such as-OH reaction, so that chemical combination or hydrogen bond is formed, and the methoxy group has higher activity and the prepared perfluoroether rubber sheet has stronger adhesive force as shown in the table.
During banburying, the white carbon black is dispersed in the perfluoroether rubber molecules, one end of the silane coupling agent can form binding force with hydroxyl on the surface of the white carbon black, and can also form hydrogen bond or chemical bond with active groups on the surface of metal, such as hydroxyl; the other end of the silane coupling agent will create a chemical bond with the cross-linking system of the perfluoroether rubber, such as TAIC.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (8)
1. The perfluoro ether rubber material bonded with metal is characterized in that the raw materials of the perfluoro ether rubber material comprise perfluoro ether rubber raw rubber, N990 carbon black, white carbon black, a silane coupling agent, a cross-linking agent, TAIC and a vulcanizing agent;
the silane coupling agent is vinyl triethoxysilane or vinyl trimethoxysilane, and is combined with white carbon black and dispersed in the perfluoroether rubber to modify the perfluoroether rubber, so as to enhance the bonding force between the surface of the perfluoroether rubber and metal bonding.
2. The perfluoroether rubber material bonded to metal according to claim 1, wherein the perfluoroether rubber material comprises the following raw materials in proportion: 100 parts of perfluoroether rubber raw rubber, 15 parts of N990 carbon black, 12 parts of white carbon black, 2-6 parts of vinyl triethoxysilane or 5 parts of vinyl trimethoxysilane, 5 parts of cross-linking agent, 2 parts of TAIC and 2 parts of vulcanizing agent;
wherein: the cross-linking agent is Perkadox1440BGR.
3. The method for preparing the metal-bonded perfluoroether rubber material according to claim 2, wherein the preparation method comprises the following steps:
s1, raw material proportion
Taking out the raw materials according to the proportion of the formula;
s2, presulfiding the perfluoroether rubber raw rubber;
s3, performing secondary vulcanization on the presulfided perfluoroether rubber;
s4, banburying
Pouring the perfluorinated ether rubber after secondary vulcanization and the residual raw materials into an internal mixer, and banburying the mixed materials to obtain a mixed material II;
and S5, compression molding and sheet discharging.
4. The method for preparing a perfluoro ether rubber material bonded to metal according to claim 3, wherein S2 comprises: taking 100 parts of perfluoroether rubber raw rubber and 2 parts of vulcanizing agent, putting into vulcanizing equipment, and vulcanizing for 10min at 160 ℃ to obtain a pre-vulcanized raw material.
5. The method for preparing a perfluoro ether rubber material bonded to metal according to claim 3, wherein S3 specifically comprises: heating the vulcanizing equipment to 200 ℃, and performing secondary vulcanization on the presulfided perfluoroether rubber for 4 hours to obtain the perfluoroether rubber subjected to peroxidation vulcanization.
6. The method for producing a perfluoroether rubber material bonded to metal according to claim 3, wherein the internal mixer in S4 is at a temperature of 100℃and a banburying time of 10min.
7. The method for preparing a perfluoro ether rubber material bonded to a metal according to claim 6, wherein S5 comprises: and (3) cooling the mixed material II for 4min, and performing die pressing to form a sheet at 80 ℃ to obtain the perfluoroether rubber sheet.
8. The method for preparing a perfluoroether rubber material bonded to metal according to claim 7, wherein S5 further comprises connecting a perfluoroether rubber sheet with metal stainless steel 316L using Chemlok607, and testing the perfluoroether rubber sheet for 90 degree peel strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310748630.6A CN116694007A (en) | 2023-06-25 | 2023-06-25 | Perfluoro ether rubber material bonded with metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310748630.6A CN116694007A (en) | 2023-06-25 | 2023-06-25 | Perfluoro ether rubber material bonded with metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116694007A true CN116694007A (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310748630.6A Pending CN116694007A (en) | 2023-06-25 | 2023-06-25 | Perfluoro ether rubber material bonded with metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116694007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117304625A (en) * | 2023-09-19 | 2023-12-29 | 上海芯密科技有限公司 | Fluororubber composition capable of effectively reducing adhesion with metal and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117304625A (en) * | 2023-09-19 | 2023-12-29 | 上海芯密科技有限公司 | Fluororubber composition capable of effectively reducing adhesion with metal and preparation method thereof |
| CN117304625B (en) * | 2023-09-19 | 2024-05-17 | 上海芯密科技有限公司 | Fluororubber composition capable of effectively reducing adhesion with metal and preparation method thereof |
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